a)
4 moli Zn(NO3)2 si 6 moli BaSO4
1 mol Zn(NO3)2 ................ 6 at O
4 moli Zn(NO3)2 ........... x = 24 at O
1 mol BaSO4 .................... 4 at O
6 moli ................................ y = 24 at O
b)
1 moli NaOH .................. 1 at O
5 moli ............................ x = 5 at O
1 mol Mg3(PO4)2 ............. 8 at O
4 moli ................................... y = 32 at O
te poti juca si la celelalte dar corect este a)
